ES2634432T3 - Controller of a power supply network - Google Patents
Controller of a power supply network Download PDFInfo
- Publication number
- ES2634432T3 ES2634432T3 ES10765621.7T ES10765621T ES2634432T3 ES 2634432 T3 ES2634432 T3 ES 2634432T3 ES 10765621 T ES10765621 T ES 10765621T ES 2634432 T3 ES2634432 T3 ES 2634432T3
- Authority
- ES
- Spain
- Prior art keywords
- energy
- control device
- decentralized
- power supply
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/004—Generation forecast, e.g. methods or systems for forecasting future energy generation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/10—Devices for predicting weather conditions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Theoretical Computer Science (AREA)
- Ecology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Atmospheric Sciences (AREA)
- Environmental Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Método para controlar una red de suministro de energía eléctrica (10), desde la cual consumidores finales de electricidad (13a-d) son abastecidos de energía eléctrica y hacia la cual los generadores de energía (12a-c) descentralizados de esa clase suministran energía eléctrica, cuya cantidad de energía generada depende de una situación climática actual en el área local del respectivo generador de energía (12a-c) descentralizado, donde en el método se ejecutan los siguientes pasos: - puesta a disposición de un modelo de red matemático en un dispositivo de control (15) de una instalación de automatización de la red de suministro de energía eléctrica (10), donde el modelo de red indica una relación entre una situación climática actual en el área local del respectivo generador de energía (12a-c) descentralizado y la energía eléctrica suministrada por el respectivo generador de energía (12a-c) descentralizado en secciones individuales (17a, 17b) de la red de suministro de energía eléctrica (10); - transmisión de datos del clima que indican una situación climática actual en el área local de los respectivos generadores de energía (12a-c) descentralizados, al dispositivo de control (15); - determinación de datos de pronóstico del clima que indican una situación climática futura prevista en el área local de los respectivos generadores de energía (12a-c) descentralizados, mediante el dispositivo de control (15); y - determinación de un suministro futuro previsto de energía eléctrica por parte de los respectivos generadores de energía (12a-c) descentralizados hacia la red de suministro de energía eléctrica (10) en base a los datos de pronóstico del clima, mediante el dispositivo de control (15), utilizando el modelo de red; caracterizado por el paso - generación de señales de control mediante el dispositivo de control (15), las cuales sirven para estabilizar un nivel de tensión en aquellas secciones (17a, 17b) de la red de suministro de energía (10), en las cuales, utilizando los resultados del modelo de red, ha sido determinado un suministro futuro previsto de energía eléctrica, el cual conduce a una desviación del nivel de tensión en la respectiva sección (17a, 17b) con respecto a un nivel de tensión objetivo predeterminado, la cual supera un valor umbral de desviación.Method for controlling an electrical power supply network (10), from which final consumers of electricity (13a-d) are supplied with electrical energy and to which the decentralized power generators (12a-c) of that class supply energy electricity, whose amount of energy generated depends on a current climatic situation in the local area of the respective decentralized energy generator (12a-c), where the following steps are carried out in the method: - making available a mathematical network model in a control device (15) of an automation installation of the electric power supply network (10), where the network model indicates a relationship between a current climatic situation in the local area of the respective power generator (12a-c ) decentralized and electric power supplied by the respective power generator (12a-c) decentralized in individual sections (17a, 17b) of the sumi network electric power supply (10); - transmission of climate data indicating a current climatic situation in the local area of the respective decentralized power generators (12a-c), to the control device (15); - Determination of weather forecast data indicating a predicted future climate situation in the local area of the respective decentralized power generators (12a-c), by means of the control device (15); and - determination of an expected future supply of electrical energy by the respective decentralized energy generators (12a-c) to the electricity supply network (10) based on the weather forecast data, by means of the device control (15), using the network model; characterized by the passage - generation of control signals by means of the control device (15), which serve to stabilize a voltage level in those sections (17a, 17b) of the power supply network (10), in which , using the results of the network model, an expected future supply of electrical energy has been determined, which leads to a deviation from the voltage level in the respective section (17a, 17b) with respect to a predetermined target voltage level, the which exceeds a threshold deviation value.
Description
55
1010
15fifteen
20twenty
2525
3030
3535
4040
45Four. Five
50fifty
5555
DESCRIPCIONDESCRIPTION
Controlador de una red de suministro de energla electricaController of a power supply network
La presente invencion hace referencia a un metodo para controlar una red de suministro de energla electrica, desde la cual consumidores finales de electricidad son abastecidos de energla electrica y hacia la cual los generadores de energla descentralizados de esa clase suministran energla electrica, cuya cantidad de energla generada depende de una situacion climatica actual en el area local del respectivo generador de energla descentralizado, donde se pone a disposicion un modelo de red matematico en un dispositivo de control de una instalacion de automatizacion de la red de suministro de energla electrica, el cual indica una relacion entre una situacion climatica actual en el area local del respectivo generador de energla descentralizado y la energla electrica suministrada por el respectivo generador de energla descentralizado en secciones individuales de la red de suministro de energla electrica. Los datos del clima que indican una situacion climatica actual en el area local de los respectivos generadores de energla descentralizados, son transmitidos al dispositivo de control. En base a los datos del clima, mediante el dispositivo de control, se determinan datos de pronostico del clima que indican una situacion climatica futura prevista en el area de los respectivos generadores de energla descentralizados y, utilizando el modelo de red, mediante el dispositivo de control, se determina un suministro de energla electrico futuro previsto por parte de los respectivos generadores de energla descentralizados hacia la red de suministro de energla electrica, en base a los datos de pronostico del clima. La invencion hace referencia ademas a un dispositivo de control para controlar una red de suministro de energla electrica, as! como a una instalacion de automatizacion con un dispositivo de control correspondiente.The present invention refers to a method for controlling an electric power supply network, from which final consumers of electricity are supplied with electric energy and to which decentralized energy generators of that class supply electric energy, whose amount of energy generated depends on a current weather situation in the local area of the respective decentralized energy generator, where a mathematical network model is made available in a control device of an automation installation of the electric power supply network, which indicates a relationship between a current weather situation in the local area of the respective decentralized power generator and the electric energy supplied by the respective decentralized power generator in individual sections of the electric power supply network. The weather data indicating a current weather situation in the local area of the respective decentralized energy generators are transmitted to the control device. Based on the weather data, through the control device, weather forecast data indicating a future predicted weather situation in the area of the respective decentralized energy generators is determined and, using the network model, using the device control, a planned future power supply is determined by the respective decentralized power generators to the electric power supply network, based on the weather forecast data. The invention also relates to a control device for controlling a power supply network, as well! as to an automation installation with a corresponding control device.
Un metodo de esa clase se encuentra por ejemplo en SUDIPTA CHAKRA-BORTY ET AL: "Distributed Intelligent Energy Management System for a Single-Phase High-Frequency AC Microgrid", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, tomo 54, N° 1, 1. febrero de 2007 (01/02/2007), paginas 97-109, XP011163573, ISSN: 0278-0046, D0I: 10.1109/TIE.2006.888766.Such a method is found for example in SUDIPTA CHAKRA-BORTY ET AL: "Distributed Intelligent Energy Management System for a Single-Phase High-Frequency AC Microgrid", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA , volume 54, No. 1, February 1, 2007 (02/01/2007), pages 97-109, XP011163573, ISSN: 0278-0046, D0I: 10.1109 / TIE.2006.888766.
En el transcurso de los ultimos anos, las redes de suministro de energla para la transmision y la distribucion de energla electrica estuvieron expuestas a un cambio importante en cuanto a su estructura. Mientras que en las redes de suministro de energla estructuradas de forma clasica la energla electrica es trasmitida desde pocos generadores centrales de gran tamano hacia una pluralidad de consumidores finales electricos, de manera que la direction de transmision se extiende esencialmente desde el generador de gran tamano (como fuente) hacia los consumidores finales individuales (como drenaje), en el pasado reciente, la tendencia vinculada a los mercados de energla liberalizados, ha conducido al surgimiento de una pluralidad de generadores de energla de menor tamano y distribuidos de forma descentralizada en la red de suministro de energla, los cuales suministran su energla electrica a la red de suministro de energla. Los generadores de menor tamano descentralizados de esa clase consisten por ejemplo en los as! llamados generadores de energla regenerativos, es decir, generadores de energla que proporcionan energla electrica desde fuentes de energla renovables a corto plazo, como por ejemplo el viento o la radiation solar. Los generadores de energla de esa clase pueden ser por ejemplo generadores eolicos o instalaciones fotovoltaicas.Over the past few years, the energy supply networks for the transmission and distribution of electric energy were exposed to a significant change in structure. While in the power supply networks structured in a classical way the electric energy is transmitted from few large-sized central generators to a plurality of final electrical consumers, so that the transmission direction extends essentially from the large-sized generator ( as a source) towards individual final consumers (as drainage), in the recent past, the trend linked to liberalized energy markets has led to the emergence of a plurality of smaller-sized energy generators and distributed in a decentralized manner in the network of power supply, which supply their electric power to the power supply network. The decentralized smaller generators of that class consist, for example, of the ace! called regenerative energy generators, that is, energy generators that provide electrical energy from renewable energy sources in the short term, such as wind or solar radiation. Energy generators of that class may be for example wind generators or photovoltaic installations.
La pluralidad de generadores de energla descentralizados existentes plantea nuevos desaflos a las instalaciones de automatizacion de energla existentes con respecto al control de las redes de suministro de energla electrica, puesto que muchos de los principios de regulation centrales utilizados hasta el momento para las redes clasicas de suministro de energla ya no son mas adecuados para controlar una red de suministro de energla que presenta muchos generadores de energla descentralizados.The plurality of existing decentralized energy generators poses new challenges to existing energy automation facilities with respect to the control of electric power supply networks, since many of the central regulation principles used so far for classical power networks Energy supply are no longer suitable for controlling an energy supply network that has many decentralized energy generators.
Mientras que tambien en las redes clasicas de suministro de energla existe una dificultad en el caso del suministro considerando la demanda de energla electrica que varla temporalmente a traves de los consumidores de energla, en las redes de suministro de energla con generadores de energla descentralizados se agregan problemas en cuanto a la oferta altamente fluctuante de energla electrica a traves de los generadores de energla descentralizados, los cuales dependen por ejemplo de la presencia de fuentes de energla primarias que no pueden ser controladas (como por ejemplo el viento o la radiacion solar).While there is also a difficulty in the classic energy supply networks in the case of supply considering the demand for electric energy that varies temporarily through energy consumers, in energy supply networks with decentralized energy generators are added problems regarding the highly fluctuating supply of electric energy through decentralized energy generators, which depend for example on the presence of primary energy sources that cannot be controlled (such as wind or solar radiation).
En las instalaciones fotovoltaicas la cantidad de la energla electrica generada depende de la radiacion solar actual sobre las respectivas instalaciones. Concretamente esto significa que las instalaciones de esa clase, en el caso de una radiacion solar particularmente intensa - por ejemplo al encontrarse despejado el cielo - generan en particular mucha energla, mientras que en el caso de una radiacion solar mas reducida - por ejemplo en el caso de una nubosidad que se presenta de forma repentina - la cantidad de energla electrica generada disminuye en alto grado. Un comportamiento correspondiente puede observarse en los generadores eolicos en cuanto a la intensidad actual del viento, con la cual se correlaciona la cantidad de energla electrica generada.In photovoltaic installations the amount of electric energy generated depends on the current solar radiation on the respective installations. Specifically, this means that installations of that class, in the case of a particularly intense solar radiation - for example when the sky is clear - generate in particular a lot of energy, while in the case of a smaller solar radiation - for example in the case of a cloudiness that occurs suddenly - the amount of electric energy generated decreases to a high degree. A corresponding behavior can be observed in wind generators in terms of the current wind intensity, with which the amount of electric energy generated is correlated.
La consecuencia de esa dependencia directa de la generation de energla de la situacion climatica actual en el area local de los respectivos generadores de energla es una intensa fluctuation de la cantidad de energla electrica suministrada a la red de suministro de energla.The consequence of this direct dependence on the generation of energy from the current climate situation in the local area of the respective energy generators is an intense fluctuation of the amount of electric energy supplied to the energy supply network.
55
1010
15fifteen
20twenty
2525
3030
3535
4040
45Four. Five
50fifty
5555
Puesto que las instalaciones fotovoltaicas generalmente son instaladas en partes de baja tension de las redes de suministro de energia, y tambien suministran generadores eolicos cada vez con mayor frecuencia en la parte de baja tension, se producen de este modo fluctuaciones parcialmente muy intensas del suministro de energia electrica generada de forma regenerativa en las partes de baja tension de las redes de suministro de energia, desde las cuales se abastece de energia electrica igualmente a la mayor parte de los consumidores finales electricos. Tambien en las partes de media tension de las redes de suministro de energia pueden observarse fluctuaciones provocadas a traves de un suministro variable.Since photovoltaic installations are generally installed in low-voltage parts of the power supply networks, and also supply wind generators with increasing frequency in the low-voltage part, partially intense fluctuations of the power supply are thus produced. Regeneratively generated electrical energy in the low voltage parts of the power supply networks, from which electrical energy is also supplied to most of the final electrical consumers. Also in the medium voltage parts of the power supply networks fluctuations caused through a variable supply can be observed.
En cuanto al aspecto tecnico, a traves de niveles de tension aumentados de manera repentina o tambien que irrumpen de forma repentina, esto puede repercutir en secciones individuales de la red de suministro de energia. Mientras que un suministro aumentado puede conducir a un ascenso del nivel de tension en la seccion de la red, un suministro reducido eventualmente puede conducir a un nivel de tension descendente. De ello resulta, por una parte, una calidad variable del suministro de energia de los consumidores finales, pero por otra parte se presenta tambien el riesgo de fallos tecnicos en aparatos e instalaciones del cliente de la compania operadora de la red de suministro, debido a danos en la banda de tension prescrita, tal como se define por ejemplo en Europa en la norma EN50160. Ademas, puede suceder igualmente que un generador de energia descentralizado, por ejemplo una instalacion fotovoltaica, en el caso de superarse una tension definida como maxima, se desconecte automaticamente en su seccion de la red y que su poseedor de este modo no pueda suministrar energia a la red por mas tiempo, lo cual se asocia a perdidas en los ingresos.As for the technical aspect, through sudden increased voltage levels or also suddenly bursting, this can have an impact on individual sections of the power supply network. While an increased supply may lead to a rise in the level of tension in the network section, a reduced supply may eventually lead to a level of falling voltage. This results in, on the one hand, a variable quality of the energy supply of final consumers, but on the other hand there is also the risk of technical failures in devices and installations of the customer of the operating company of the supply network, due to damage to the prescribed voltage band, as defined for example in Europe in EN50160. In addition, it can also happen that a decentralized power generator, for example a photovoltaic installation, in the case of exceeding a voltage defined as maximum, is automatically disconnected in its section of the network and that its holder can not supply energy to the network for longer, which is associated with lost revenue.
De este modo, el objeto de la presente invencion consiste en aumentar la estabilidad de una red de suministro de energia electrica hacia la cual suministran energia electrica generadores de energia descentralizados de esa clase, cuya cantidad de energia generada depende de una situacion climatica actual en el area local del respectivo generador de energia descentralizado.Thus, the object of the present invention is to increase the stability of an electric power supply network to which decentralized power generators of that kind supply electric power, the amount of energy generated depends on a current weather situation in the local area of the respective decentralized power generator.
Para alcanzar el objeto mencionado se sugiere un metodo de la clase mencionada en la introduccion, donde mediante el dispositivo de control son generadas senales de control que sirven para estabilizar un nivel de tension en aquellas secciones de la red de suministro de energia, en las cuales, utilizando los resultados del modelo de red, ha sido determinado un suministro futuro previsto de energia electrica, el cual conduce a una desviacion del nivel de tension en la respectiva seccion con respecto a un nivel de tension objetivo predeterminado, la cual supera un valor umbral de desviacion.To achieve the aforementioned object, a method of the kind mentioned in the introduction is suggested, where the control device generates control signals that serve to stabilize a voltage level in those sections of the power supply network, in which , using the results of the network model, an expected future supply of electrical energy has been determined, which leads to a deviation of the voltage level in the respective section with respect to a predetermined target voltage level, which exceeds a threshold value deviation
La ventaja especial del metodo de acuerdo con la invencion reside en el hecho de que se posibilita un control predictivo de secciones individuales de la red de suministro de energia considerando los efectos de una condicion climatica futura prevista en el area local de generadores de energia descentralizados sobre su suministro, y en aquellas secciones en las cuales puede esperarse una marcada variacion de un nivel de tension a traves de una situacion de suministro modificada se efectuan acciones de control en forma de senales de control que actuan actualmente y/o orientadas a un futuro cercano, las cuales sirven para estabilizar el nivel de tension. Gracias a ello se mejora por una parte la calidad de la energia electrica en las respectivas secciones de la red, ya que alli ya no se producen fluctuaciones intensas de la red tampoco en el caso de variaciones repentinas del suministro de energia electrica y, por otra parte, pueden evitarse fallos no deseados de equipos terminales con poco suministro, en el caso de niveles de tension reducidos. En ese caso, un control predictivo significa que debe considerarse la respectiva situacion climatica en el futuro cercano, es decir por ejemplo un dominio de tiempo de hasta 1 hora en el futuro, para deducir acciones de control.The special advantage of the method according to the invention resides in the fact that a predictive control of individual sections of the power supply network is possible considering the effects of a future weather condition foreseen in the local area of decentralized power generators over its supply, and in those sections in which a marked variation of a voltage level can be expected through a modified supply situation, control actions are carried out in the form of control signals that are currently operating and / or oriented towards the near future , which serve to stabilize the level of tension. Thanks to this, the quality of the electrical energy in the respective sections of the network is improved on the one hand, since there are no longer intense fluctuations of the network either in the case of sudden variations in the supply of electrical energy and, on the other On the other hand, unwanted failures of terminal equipment with little supply can be avoided, in the case of reduced voltage levels. In that case, a predictive control means that the respective climatic situation in the near future must be considered, that is, for example, a time domain of up to 1 hour in the future, to deduce control actions.
En concreto, para el control puede preverse que, en el caso de que el suministro de energia electrica futuro determinado en una seccion de la red de suministro de energia indique un descenso del nivel de tension en esa seccion, las senales de control desconecten consumidores finales electricos seleccionados que son abastecidos por la respectiva seccion.Specifically, for the control it can be provided that, in the event that the future electricity supply determined in a section of the power supply network indicates a decrease in the voltage level in that section, the control signals disconnect final consumers selected electric that are supplied by the respective section.
De este modo, ya de manera predictiva puede estabilizarse el nivel de tension de la seccion afectada de la red, puesto que a traves de la desconexion selectiva de consumidores electricos se reacciona frente a un suministro previsto mas reducido de potencia electrica, con una reduccion de la demanda de acuerdo con la potencia electrica en la seccion de la red. Ademas, a traves de la desconexion de consumidores seleccionados puede evitarse una falla o desconexion no deseada de consumidores electricos sensibles. Para la desconexion transitoria son adecuados por ejemplo los consumidores finales con funcionalidad de almacenamiento, como por ejemplo los frigorificos y congeladores, aires acondicionados, calentadores de agua, tambien estaciones de carga para vehiculos electricos, en donde la bateria del vehiculo puede considerarse como acumulador de energia. Ademas, consumidores finales seleccionados de esa clase pueden ser tambien aquellos aparatos cuyo funcionamiento no es necesario obligatoriamente en ese momento, por ejemplo elementos de iluminacion individuales de un sistema de iluminacion mas grande. En un caso particular es posible ponerse de acuerdo con el cliente de una compania operadora de una red de suministro de energia sobre aparatos individuales que pueden ser desconectados en caso necesario por parte de la compania operadora de la red. Para ello, los aparatos de esa clase deben disponer de un controlador correspondiente que este preparado para recibir y transformar las senales de control enviadas por elIn this way, the level of tension of the affected section of the network can already be stabilized in a predictive way, since through the selective disconnection of electric consumers, it reacts to a predicted reduced supply of electric power, with a reduction of the demand according to the electrical power in the network section. In addition, through the disconnection of selected consumers, an unwanted failure or disconnection of sensitive electrical consumers can be avoided. For the transitory disconnection, for example, final consumers with storage functionality are suitable, such as refrigerators and freezers, air conditioners, water heaters, and also charging stations for electric vehicles, where the vehicle's battery can be considered as an accumulator of Energy. In addition, selected final consumers of that class may also be those devices whose operation is not necessarily necessary at that time, for example individual lighting elements of a larger lighting system. In a particular case, it is possible to agree with the customer of an operating company of a power supply network on individual devices that can be disconnected if necessary by the operating company of the network. For this, the devices of that class must have a corresponding controller that is prepared to receive and transform the control signals sent by the
55
1010
15fifteen
20twenty
2525
3030
3535
4040
45Four. Five
50fifty
dispositivo de control de la instalacion de automatizacion (por ejemplo senales de control segun telemando centralizado).control device of the automation installation (for example control signals according to centralized remote control).
Puede preverse ademas que, en el caso de que el suministro de energla electrica futuro determinado en una seccion de la red de suministro de energla indique un aumento del nivel de tension en esa seccion, las senales de control conecten consumidores finales electricos seleccionados que son abastecidos por la respectiva seccion y/o que desconecten consumidores finales electricos seleccionados que suministran a la respectiva seccion.It can also be provided that, in the event that the future power supply determined in a section of the power supply network indicates an increase in the voltage level in that section, the control signals connect selected final electrical consumers that are supplied by the respective section and / or disconnecting selected final electrical consumers that supply to the respective section.
Debido a ello puede evitarse un nivel de tension excesivo, puesto que a traves de la conexion agregada selectiva de consumidores finales electricos con un suministro en aumento se incrementa tambien la demanda de energla electrica, as! como - por ejemplo cuando no es posible conectar otros consumidores finales o esto no serla suficiente - a traves de una desconexion selectiva de generadores de energla descentralizados seleccionados se impide un suministro aumentado hacia la respectiva seccion de la red. Una desconexion selectiva de esa clase ofrece ademas la ventaja de poder realizar una distribucion compensada y con ello correcta de los tiempos de desconexion en todos los generadores de energla en una seccion de la red, distribuyendo tambien de modo uniforme en las companlas operadoras individuales las perdidas en los ingresos vinculadas a la desconexion.Because of this, an excessive voltage level can be avoided, since the demand for electric energy is increased through the selective aggregate connection of electrical end consumers with an increasing supply as well! as - for example, when it is not possible to connect other end consumers or this would not be enough - through a selective disconnection of selected decentralized power generators, an increased supply to the respective section of the network is prevented. A selective disconnection of this class also offers the advantage of being able to make a compensated distribution and with it correct disconnection times in all the power generators in a section of the network, also distributing evenly in the individual operating companies the lost ones. in the income linked to the disconnection.
De acuerdo con otra forma de ejecucion ventajosa del metodo de acuerdo con la invention puede preverse que los datos del clima sean registrados mediante instrumentos de medicion en el respectivo generador de energla descentralizado y/o que sean proporcionados por una base central de datos del clima y que sean transmitidos al dispositivo de control.According to another advantageous embodiment of the method according to the invention, it can be provided that the climate data is recorded by measuring instruments in the respective decentralized energy generator and / or that is provided by a central climate database and that are transmitted to the control device.
De este modo, al dispositivo de control pueden proporcionarse datos del clima siempre actuales. Puesto que en algunos generadores de energla descentralizados (por ejemplo generadores eolicos) se encuentran presentes de todos modos instrumentos de medicion para registrar magnitudes de medicion referidas al clima, los valores de medicion correspondientes pueden transmitirse simplemente al dispositivo de control como datos del clima. De manera alternativa o adicional, datos del clima para los emplazamientos en cuestion de los generadores de energla descentralizados pueden obtenerse tambien desde bases de datos del clima (por ejemplo del Deutscher Wetterdienst -Servicio Meteorologico Aleman). Para ello, la ubicacion geografica precisa de los generadores de energla descentralizados debe registrarse una unica vez y debe guardarse en el dispositivo de control.In this way, always current weather data can be provided to the control device. Since in some decentralized energy generators (for example wind generators) measurement instruments are still present to record measurement quantities referred to the climate, the corresponding measurement values can simply be transmitted to the control device as climate data. Alternatively or additionally, climate data for the sites in question of decentralized energy generators can also be obtained from climate databases (for example from Deutscher Wetterdienst - German Meteorological Service). For this, the precise geographical location of the decentralized energy generators must be registered only once and stored in the control device.
En otra forma de ejecucion ventajosa del metodo de acuerdo con la invencion se preve ademas que la determination de la situation climatica futura prevista en el area local de los respectivos generadores de energla descentralizados tenga lugar utilizando metodos de reconocimiento de patrones, los cuales realizan una comparacion de los datos de clima actuales con datos del clima historicos almacenados en el dispositivo de control, determinando en base a ello un desarrollo probable de la situacion climatica en el area local de los respectivos generadores de energla descentralizados, mediante la determinacion de los datos de pronostico del clima.In another advantageous embodiment of the method according to the invention, it is further provided that the determination of the future weather situation envisaged in the local area of the respective decentralized energy generators takes place using pattern recognition methods, which make a comparison of the current weather data with historical weather data stored in the control device, determining based on this a probable development of the climatic situation in the local area of the respective decentralized energy generators, by determining the forecast data of the weather.
De este modo, por ejemplo, pueden detectarse similitudes o repeticiones regulares de determinados desarrollos de los datos del clima actuales en comparacion con desarrollos de datos de clima historicos almacenados, de manera que en base a ello pueden deducirse datos de pronostico del clima que indican un desarrollo futuro probable de la situacion climatica en las areas locales de los respectivos generadores de energla descentralizados.Thus, for example, regular similarities or repetitions of certain developments of the current weather data can be detected in comparison to stored historical weather data developments, so that based on this, weather forecast data indicating a probable future development of the climatic situation in the local areas of the respective decentralized energy generators.
Ademas, en el caso de un registro adecuado de datos del clima - por ejemplo mediante camaras - podrlan detectarse tambien patrones de nubes e information sobre nubes que se desplazan mayormente de forma constante sobre la superficie, oscureciendola. Con la ayuda de algoritmos del reconocimiento de patrones podrlan reconocerse incluso campos de nubes individuales en cuanto a su forma y realizar predicciones con respecto a su direction y velocidad de movimiento.In addition, in the case of an adequate record of weather data - for example through cameras - cloud patterns and information about clouds that are constantly constantly moving over the surface could be detected, obscuring it. With the help of pattern recognition algorithms, even individual cloud fields could be recognized as to their shape and make predictions regarding their direction and speed of movement.
Ademas, de acuerdo con otra forma de ejecucion ventajosa del metodo de acuerdo con la invencion, puede preverse que al dispositivo de control sean suministrados tambien datos de prediction del clima desde una base de datos del clima, donde dichos datos indican una situacion climatica futura en el area local de los respectivos generadores de energla descentralizados, y que la determinacion de los datos de pronostico del clima tenga lugar tambien utilizando los datos de prediccion del clima.In addition, according to another advantageous method of execution according to the invention, it can be provided that the climate control data is also provided to the control device from a climate database, where said data indicates a future climatic situation in the local area of the respective decentralized energy generators, and that the determination of the weather forecast data also takes place using the weather forecast data.
Los datos de prediccion del clima pueden utilizarse para verificar los datos de pronostico del clima determinados mediante el dispositivo de control o para agregar a la determinacion de los datos de pronostico del clima tendencias a largo plazo en el desarrollo de la respectiva situacion climatica.The weather forecast data can be used to verify the weather forecast data determined by the control device or to add to the determination of the weather forecast data long-term trends in the development of the respective weather situation.
Concretamente, en cuanto a la evaluation de la situacion climatica en las areas locales de los respectivos generadores de energla descentralizados puede preverse que los datos de pronostico del clima comprendan una indication sobre al menos uno de los siguientes valores: densidad de la nubosidad, radiation solar, intensidad del viento, direccion del viento, margen de fluctuation actual de la intensidad del viento (casi una "capacidad deSpecifically, as regards the evaluation of the climatic situation in the local areas of the respective decentralized energy generators, it can be expected that the weather forecast data will include an indication of at least one of the following values: cloud density, solar radiation , wind intensity, wind direction, current fluctuation range of wind intensity (almost a "capacity of
55
1010
15fifteen
20twenty
2525
3030
3535
4040
45Four. Five
50fifty
produccion de rafagas" del viento), el margen de fluctuation de la radiation solar, por ejemplo un cielo completamente cubierto o despejado en comparacion con un cielo parcialmente soleado, parcialmente nublado.gust production "of the wind), the fluctuation range of solar radiation, for example a completely covered or clear sky compared to a partly sunny, partly cloudy sky.
Por ese motivo se indican aquellos valores que ejercen una influencia considerable sobre la generation de energla de los respectivos generadores de energla descentralizados.For this reason, those values that exert a considerable influence on the energy generation of the respective decentralized energy generators are indicated.
El objeto mencionado anteriormente se alcanzara tambien a traves de un dispositivo de control de una instalacion de automatization de una red de suministro de energla electrica, el cual se encuentra configurado para ejecutar un metodo segun una de las formas de ejecucion antes descritas.The aforementioned object will also be achieved through a control device of an automation installation of a power supply network, which is configured to execute a method according to one of the above-described forms of execution.
Por ultimo, el objeto mencionado anteriormente se alcanzara tambien a traves de una instalacion de automatizacion con un dispositivo de control configurado de modo correspondiente.Finally, the aforementioned object will also be achieved through an automation installation with a correspondingly configured control device.
A continuation, la presente invention se describira en detalle mediante un ejemplo de ejecucion. Para ello, la figura muestra una vista esquematica de una red de suministro de energla electrica que es controlada a traves de un dispositivo de control.Next, the present invention will be described in detail by an exemplary embodiment. To do this, the figure shows a schematic view of an electric power supply network that is controlled through a control device.
En la figura se muestra una parte de una red de suministro de energla electrica 10. La red de suministro de energla presenta una parte de media tension 10a (aprox. 6-30kV) y una parte de baja tension 10b (< 1kV). Las dos partes de la red 10a, 10b estan conectadas una con otra mediante una estacion del transformador 11.The figure shows a part of an electric power supply network 10. The power supply network has a medium voltage part 10a (approx. 6-30kV) and a low voltage part 10b (<1kV). The two parts of the network 10a, 10b are connected to each other by a transformer station 11.
En la parte de baja tension 10b de la red de suministro de energla 10 se proporcionan generadores de energla 12a, 12b, 12c descentralizados que pueden suministrar energla electrica a la red de suministro de energla. Los generadores de energla descentralizados consisten en aquellos generadores de energla cuya cantidad de energla generada depende de una situation climatica actual en el area local del respectivo generador de energla descentralizado, en particular de una radiacion solar local o de una intensidad del viento local. En concreto, los generadores de energla 12a, 12b descentralizados pueden tratarse de instalaciones fotovoltaicas que por ejemplo pueden instalarse en techos de viviendas y que suministran su energla electrica a una primera section 17a de la red de suministro de energla 10. Los generadores de energla 12c descentralizados pueden tratarse ademas de un generador eolico que suministra su energla eolica a una segunda seccion 17b de la red de suministro de energla 10. Los generadores eolicos de menor tamano, para el suministro de energla electrica, se conectan cada vez con mayor frecuencia tambien directamente en la parte de baja presion de las redes de suministro de energla.In the low voltage part 10b of the power supply network 10 decentralized power generators 12a, 12b, 12c are provided which can supply electric power to the power supply network. Decentralized energy generators consist of those energy generators whose amount of energy generated depends on a current weather situation in the local area of the respective decentralized energy generator, in particular a local solar radiation or a local wind intensity. Specifically, decentralized energy generators 12a, 12b can be photovoltaic installations that for example can be installed on roofs of homes and that supply their electricity to a first section 17a of the energy supply network 10. Energy generators 12c The decentralized ones can also be a wind generator that supplies its wind power to a second section 17b of the power supply network 10. The smaller wind generators, for the supply of electric energy, are also increasingly connected directly directly in the low pressure part of the energy supply networks.
Ademas, en la parte de baja tension 10b de la red de suministro de energla 10 se proporcionan tambien consumidores finales electricos, de los cuales en la figura se representan solo a modo de ejemplo los consumidores finales 13a, 13b, 13c, 13d. En concreto, los consumidores finales 13a y 13b obtienen su energla electrica desde la primera seccion 17a de la red de suministro de energla 10, mientras que los consumidores 13c y 13d son abastecidos desde la segunda seccion 17b. En este contexto, como consumidores finales se consideran tanto los aparatos electricos individuales, por ejemplo aparatos de uso domestico (lavadoras, secadoras, refrigeradores, congeladores), televisores u ordenadores, como tambien grupos de aparatos electricos (por ejemplo una iluminacion externa o del hueco de una escalera).In addition, electrical end consumers are also provided in the low voltage part 10b of the power supply network 10, of which the final consumers 13a, 13b, 13c, 13d are represented by way of example only. Specifically, final consumers 13a and 13b obtain their electric energy from the first section 17a of the power supply network 10, while consumers 13c and 13d are supplied from the second section 17b. In this context, as individual consumers, both individual electrical appliances are considered, for example domestic appliances (washing machines, dryers, refrigerators, freezers), televisions or computers, as well as groups of electrical appliances (for example, external or hollow lighting). of a ladder).
Tanto los generadores de energla 12ac descentralizados, como tambien los consumidores finales 13a-d, mediante una conexion de comunicacion que en la figura solo se muestra a modo de ejemplo como bus de comunicacion 14, estan conectados a un dispositivo de control 15 de una instalacion de automatizacion, no representada por lo demas en detalle, para controlar y monitorear la red de suministro de energla 10. De este modo, el bus de comunicacion 14, por ejemplo, puede formar parte de un bus de automatizacion que se utiliza para la conexion de comunicacion de los componentes individuales de la instalacion de automatizacion de la red de suministro de energla 10. A modo de ejemplo, el bus de comunicacion 14 puede estar realizado como bus de Ethernet, mediante el cual pueden ser transmitidos mensajes de datos de acuerdo con el estandar IEC 61850 vigente para instalaciones de automatizacion de redes de suministro de energla. El dispositivo de control 15 puede estar formado por un dispositivo central de procesamiento de datos o por un sistema de dispositivos de procesamiento de datos dispuestos de forma distribuida. De manera opcional, el dispositivo de control 15 puede estar conectado tambien a una base de datos del clima 16.Both the decentralized energy generators 12ac, as well as the final consumers 13a-d, through a communication connection shown in the figure only as an example as a communication bus 14, are connected to a control device 15 of an installation of automation, not represented in detail, to control and monitor the power supply network 10. In this way, the communication bus 14, for example, can be part of an automation bus that is used for connection of communication of the individual components of the automation installation of the power supply network 10. By way of example, the communication bus 14 can be realized as an Ethernet bus, by means of which data messages can be transmitted according to the current IEC 61850 standard for automation installations of energy supply networks. The control device 15 may be formed by a central data processing device or by a system of distributed data processing devices. Optionally, the control device 15 can also be connected to a weather database 16.
A continuacion se representa el procedimiento en el caso de un controlador predictivo de la red de suministro de energla 10:The following procedure is represented in the case of a predictive controller of the power supply network 10:
Durante el funcionamiento, el dispositivo de control 15 ejecuta un software de control que, entre otras cosas, calcula un modelo de red matematico dinamico que indica una relation entre una situacion climatica actual en el area local del respectivo generador de energla descentralizado y la energla electrica suministrada por el respectivo generador de energla descentralizado hacia secciones individuales de la red de suministro de energla electrica. El modelo de red mencionado se utiliza para determinar una cantidad de suministro de energla electrica futuro previsto para cada generador de energla 12a-c descentralizado. Para ello, al dispositivo de control 15 son suministrados datos del clima WD que indican la situacion climatica actual en elDuring operation, the control device 15 executes a control software that, among other things, calculates a dynamic mathematical network model that indicates a relationship between a current weather situation in the local area of the respective decentralized energy generator and the electric energy supplied by the respective decentralized energy generator to individual sections of the electricity supply network. The aforementioned network model is used to determine an expected amount of future electricity supply for each decentralized energy generator 12a-c. To this end, the control device 15 is supplied with WD weather data indicating the current weather situation in the
55
1010
15fifteen
20twenty
2525
3030
3535
4040
45Four. Five
50fifty
5555
area local de los respectivos generadores de energla 12a-c descentralizados. Los datos del clima WD mencionados, por ejemplo con respecto a las instalaciones fotovoltaicas 12a y 12b, comprenden indicaciones sobre la densidad de la nubosidad y/o sobre la radiacion solar, as! como con respecto al generador eolico 12c, comprenden indicaciones sobre la intensidad del viento y/o sobre la direccion del viento. De este modo, los datos del clima WD pueden ser registrados por ejemplo a traves de mediciones mediante instrumentos de medicion adecuados que se proporcionan directamente en los respectivos generadores de energla 12a-c descentralizados. De manera alternativa o adicional, los datos del clima WD pueden ser proporcionados tambien por la base de datos del clima 16 (por ejemplo por el Servicio Meteorologico Aleman) y, a modo de ejemplo, pueden ser transmitidos al dispositivo de control 15 mediante una conexion de Internet. En ese caso, para seleccionar los datos del clima WD adecuados con respecto a los respectivos generadores de energla 12a-c, es necesario conocer la posicion geografica exacta de los respectivos generadores de energla 12a-c descentralizados, la cual por ejemplo puede determinarse una unica vez al poner en funcionamiento ellocal area of the respective decentralized energy generators 12a-c. The mentioned WD weather data, for example with respect to photovoltaic installations 12a and 12b, include indications on cloud density and / or on solar radiation, as well! as with respect to wind generator 12c, they include indications of wind intensity and / or wind direction. In this way, the WD weather data can be recorded, for example, through measurements by suitable measuring instruments that are provided directly in the respective decentralized power generators 12a-c. Alternatively or additionally, the weather data WD can also be provided by the weather database 16 (for example by the German Meteorological Service) and, by way of example, can be transmitted to the control device 15 via a connection from Internet. In that case, to select the appropriate WD climate data with respect to the respective energy generators 12a-c, it is necessary to know the exact geographical position of the respective decentralized energy generators 12a-c, which for example can determine only one time when the
respectivo generador de energla 12a-c y puede ser incorporada al dispositivo de control 15.respective energy generator 12a-c and can be incorporated into the control device 15.
Los datos del clima WD registrados directamente en los generadores de energla 12ac descentralizados sonThe WD climate data recorded directly in decentralized 12ac power generators are
transmitidos al dispositivo de control 15 por ejemplo en forma de paquetes de datos, mediante el bus detransmitted to the control device 15 for example in the form of data packets, via the bus of
comunicacion 14. De manera alternativa, los datos del clima WD pueden ser transmitidos al dispositivo de control 15 tambien mediante cualquier otro procedimiento de comunicacion inalambrico o que implique la utilizacion de cables.communication 14. Alternatively, the weather data WD can be transmitted to the control device 15 also by any other wireless communication procedure or involving the use of cables.
Junto con los datos del clima WD actuales, en el dispositivo de control 15 se encuentran tambien almacenados datos del clima historicos, es decir, aquellos datos del clima que han sido transmitidos al dispositivo de control 15 en momentos anteriores y que han sido guardados all! en una memoria de archivo. El dispositivo de control 15, utilizando metodos de reconocimiento de patrones, analiza los datos del clima actuales y los datos del clima historicos almacenados, deduciendo desarrollos probables de la situation climatica en las areas locales de los respectivos generadores de energla 12a-c descentralizados en base a la comparacion de los datos del clima mencionados, determinando de ese modo datos de pronostico del clima que indican una situacion climatica futura prevista en el area local de los respectivos generadores de energla 12a-c descentralizados. Los datos de pronostico del clima mencionados se consideran para un perlodo proximo en el futuro cercano, cubriendo as! por ejemplo un intervalo de hasta unos pocos minutos o de hasta una hora en el futuro.Together with the current WD weather data, historical weather data is also stored in the control device 15, that is, those weather data that have been transmitted to the control device 15 at previous times and that have been stored there! in a file memory. The control device 15, using pattern recognition methods, analyzes the current weather data and the stored historical weather data, deducing probable developments of the weather situation in the local areas of the respective decentralized energy generators 12a-c based to the comparison of the aforementioned weather data, thereby determining weather forecast data indicating a future predicted weather situation in the local area of the respective decentralized energy generators 12a-c. The weather forecast data mentioned are considered for a near period in the near future, thus covering! for example an interval of up to a few minutes or up to an hour in the future.
De manera opcional, para una determination mas precisa o para verificar los datos de pronostico del clima determinados con el metodo de reconocimiento de patrones se obtienen tambien datos de prediction del clima WD desde la base de datos del clima 16, los cuales indican un desarrollo de la situacion climatica en el area de los respectivos generadores de energla descentralizados, previsto por un servicio meteorologico.Optionally, for a more precise determination or to verify the weather forecast data determined with the pattern recognition method, WD weather prediction data is also obtained from the weather database 16, which indicates a development of the climatic situation in the area of the respective decentralized energy generators, provided by a meteorological service.
Mediante los datos de pronostico del clima determinados, el dispositivo de control 15, utilizando el modelo de red, determina cantidades futuras previstas de suministro de energla electrica, las cuales son suministradas por parte de los respectivos generadores de energla 12a-c descentralizados hacia las respectivas secciones de la red 17a y 17b. Esas cantidades de suministro previstas permiten entonces deducir si para la respectiva section de la red 17a, as! como 17b, se espera un funcionamiento estable, en donde el suministro y el consumo de energla electrico practicamente estan equilibrados, o se espera un estado de funcionamiento no equilibrado el cual se mostrara en un claro aumento o descenso del nivel de tension en la respectiva seccion de la red 17a, 17b; es decir en una desviacion de la tension real de una tension objetivo predeterminada en una seccion 17a, 17b, la cual supera un valor umbral de desviacion predeterminado. En correspondencia con el resultado del calculo realizado con el modelo de red, el dispositivo de control - directamente o indirectamente mediante un sistema de control de la red conectado al dispositivo de control (por ejemplo un sistema SCADA o un sistema de automatization de subestaciones) - genera senales de control que deben contribuir a una estabilizacion del nivel de tension en las respectivas secciones de la red 17a, 17b.Using the weather forecast data determined, the control device 15, using the network model, determines expected future amounts of electricity supply, which are supplied by the respective decentralized energy generators 12a-c to the respective Network sections 17a and 17b. These planned supply quantities then allow to deduce if for the respective section of the network 17a, as! as 17b, stable operation is expected, where the supply and consumption of electric energy are practically balanced, or an unbalanced operating state is expected which will be shown in a clear increase or decrease in the voltage level in the respective section. of the network 17a, 17b; that is, in a deviation from the actual tension of a predetermined target voltage in a section 17a, 17b, which exceeds a predetermined threshold deviation value. Corresponding to the result of the calculation made with the network model, the control device - directly or indirectly by means of a network control system connected to the control device (for example a SCADA system or a substation automation system) - generates control signals that should contribute to a stabilization of the voltage level in the respective sections of the network 17a, 17b.
De este modo, expresado de forma general, en el caso de un descenso previsto del suministro de energla electrica hacia una seccion de la red 17a o 17b, se generan senales de control que provocan una reduction de la obtencion de energla electrica desde la seccion de la red 17a o 17b en cuestion a traves de los consumidores finales 13a-d. De manera correspondiente, en el caso de un aumento previsto del suministro de energla electrica en una seccion de la red 17a, 17b, se generan senales de control que provocan un aumento de la obtencion de energla electrica a traves de los consumidores finales 13a-d en la seccion de la red 17a, 17b en cuestion o - en el caso de que esto no sea posible o sea insuficiente - provocan una desconexion transitoria o una limitation del suministro de energla electrica a a traves de uno o de varios de los generadores de energla 12a-c descentralizados. A traves de un control central de la desconexion central o limitacion del suministro, durante un perlodo de observation (por ejemplo un ano), puede alcanzarse ademas una distribution lo mas regular posible de dichas medidas en los respectivos generadores de energla 12a-c, de manera que en lo posible no se perjudique a ninguna companla operadora de un generador de energla.Thus, expressed in a general way, in the case of an expected decrease in the supply of electric energy to a section of the network 17a or 17b, control signals are generated that cause a reduction in the obtaining of electric energy from the section of network 17a or 17b in question through final consumers 13a-d. Correspondingly, in the case of an expected increase in the supply of electric energy in a section of the network 17a, 17b, control signals are generated that cause an increase in the obtaining of electric energy through the final consumers 13a-d in the section of the network 17a, 17b in question or - in the event that this is not possible or insufficient - they cause a temporary disconnection or a limitation of the supply of electric energy through one or more of the power generators 12a-c decentralized. Through a central control of the central disconnection or supply limitation, during an observation period (for example one year), a more regular distribution of such measurements can also be achieved in the respective energy generators 12a-c, of so that as far as possible, no operating company of an energy generator is harmed.
El procedimiento se explicara una vez mas mediante ejemplos: Por ejemplo, si debido a una nubosidad densa que se presenta repentinamente en el area local de las instalaciones fotovoltaicas 12a, y 12b, un descenso marcado de las cantidades de suministro de energla electrica hacia la primera seccion 17a de la red de suministro de energla 10The procedure will be explained once again by means of examples: For example, if due to a dense cloudiness that suddenly occurs in the local area of photovoltaic installations 12a, and 12b, a marked decrease in the amounts of electricity supply towards the first Section 17a of the power supply network 10
66
es pronosticado por el dispositivo de control 15, entonces el dispositivo de control 15 dispone la emision de primeras senales de control ST1 que provocan una desconexion transitoria de consumidores finales seleccionados en esa seccion (por ejemplo de los consumidores finales 13a y 13b). Debido a que a la cantidad de suministro reducida se opone ahora a un consumo de energla electrica igualmente reducido, el nivel de tension puede mantenerse estable 5 en la primera seccion 17a. Si la cantidad de suministro aumenta nuevamente debido a la radiacion solar intensificada, entonces los consumidores finales 13a, 13b desconectados pueden ser conectados nuevamente mediante segundas senales de control ST2. Si el suministro aumenta aun mas debido a una radiacion solar mas aumentada o algunos de los consumidores finales 13a, 13b han sido desconectados por su usuario, entonces para evitar un estado de desequilibrio en la primera seccion de la red 17a son generadas tambien terceras senales de 10 control ST3 que provocan una desconexion o limitacion de generadores de energla seleccionados, por ejemplo del generador de energla 12a.it is predicted by the control device 15, then the control device 15 arranges the emission of first control signals ST1 that cause a transient disconnection of final consumers selected in that section (for example of the final consumers 13a and 13b). Because the reduced supply quantity now opposes an equally reduced electric power consumption, the voltage level can remain stable 5 in the first section 17a. If the supply quantity increases again due to intensified solar radiation, then the disconnected end consumers 13a, 13b can be reconnected by second ST2 control signals. If the supply increases even more due to a more increased solar radiation or some of the final consumers 13a, 13b have been disconnected by their user, then to avoid a state of imbalance in the first section of the network 17a third signals are also generated from 10 ST3 control causing a disconnection or limitation of selected energy generators, for example of the energy generator 12a.
Del modo descrito, una red de suministro de energla a la cual se encuentran vinculados generadores de energla descentralizados, cuya cantidad de suministro de energla electrica depende de una situacion climatica actual, puede ser controlada predictivamente de forma estable, donde en particular puede asegurarse la estabilidad de tension en 15 secciones individuales de la red de suministro de energla.In the described manner, a power supply network to which decentralized power generators are linked, whose amount of electricity supply depends on a current weather situation, can be controlled predictively stably, where in particular stability can be ensured. of tension in 15 individual sections of the power supply network.
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2010/065302 WO2012048736A1 (en) | 2010-10-13 | 2010-10-13 | Controlling an electrical energy supply network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2634432T3 true ES2634432T3 (en) | 2017-09-27 |
Family
ID=43875532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES10765621.7T Active ES2634432T3 (en) | 2010-10-13 | 2010-10-13 | Controller of a power supply network |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130204451A1 (en) |
| EP (1) | EP2628231B1 (en) |
| CN (1) | CN103155336B (en) |
| BR (1) | BR112013008629B1 (en) |
| ES (1) | ES2634432T3 (en) |
| WO (1) | WO2012048736A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT513059B1 (en) * | 2012-06-26 | 2014-06-15 | Roland Ing Ochenbauer | Apparatus and method for improving energy use |
| DE102012106466B4 (en) * | 2012-07-18 | 2021-07-01 | Sma Solar Technology Ag | Control of equipment by influencing the mains voltage |
| CA2894380A1 (en) | 2012-12-11 | 2014-06-19 | Siemens Aktiengesellschaft | Method for controlling the operation of electric energy generators and control device for performing the method |
| CN103033855B (en) * | 2012-12-12 | 2013-12-11 | 江苏省电力公司电力科学研究院 | Grid meteorological disaster monitoring and early warning system |
| US9772428B2 (en) * | 2013-06-18 | 2017-09-26 | Google Technology Holdings LLC | Determining micro-climates based on weather-related sensor data from mobile devices |
| CN104156775B (en) * | 2013-06-28 | 2017-06-13 | 贵州电网公司电力调度控制中心 | Meteorological disaster Forecasting Methodology based on arithmetic of linearity regression |
| US9647458B2 (en) * | 2014-05-27 | 2017-05-09 | International Business Machines Corporation | Distributed phase balancing |
| US10088601B2 (en) * | 2014-10-28 | 2018-10-02 | Google Llc | Weather forecasting using satellite data and mobile-sensor data from mobile devices |
| CN104951857A (en) * | 2014-11-27 | 2015-09-30 | 国网山东省电力公司应急管理中心 | Power-grid-GIS-based meteorological data invoking and pretreatment method and system |
| FR3071110B1 (en) * | 2017-09-12 | 2019-08-30 | Schneider Electric Industries Sas | METHOD FOR MONITORING AND CONTROLLING AN ELECTRICAL NETWORK |
| JP6678195B2 (en) * | 2018-03-22 | 2020-04-08 | 住友電装株式会社 | Relay drive circuit |
| CN112636396B (en) * | 2020-12-24 | 2023-05-09 | 国网河北省电力有限公司电力科学研究院 | Photovoltaic power distribution network control method and terminal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7430534B2 (en) * | 2001-06-15 | 2008-09-30 | Abb Ab | System, method and computer program product for risk-minimization and mutual insurance relations in meteorology dependent activities |
| US7523001B2 (en) * | 2006-09-28 | 2009-04-21 | General Electric Company | Method and apparatus for operating wind turbine generators |
| US8260469B2 (en) * | 2008-11-04 | 2012-09-04 | Green Energy Corporation | Distributed hybrid renewable energy power plant and methods, systems, and comptuer readable media for controlling a distributed hybrid renewable energy power plant |
| CN101414751A (en) * | 2008-11-20 | 2009-04-22 | 北京方鸿溪科技有限公司 | Wind power forecasting system and method thereof, network system |
| US8068938B2 (en) * | 2009-05-15 | 2011-11-29 | General Electric Company | Method and system for managing a load demand on an electrical grid |
| US20100138063A1 (en) * | 2009-08-28 | 2010-06-03 | General Electric Company | Systems and methods for interfacing renewable power sources to a power grid |
| US8401709B2 (en) * | 2009-11-03 | 2013-03-19 | Spirae, Inc. | Dynamic distributed power grid control system |
| CN101794996A (en) * | 2010-02-10 | 2010-08-04 | 华东电网有限公司 | Real-time predicting method for output of wind electric field |
| JP2013529051A (en) * | 2010-05-07 | 2013-07-11 | アドバンスド エナージィ インダストリーズ，インコーポレイテッド | Photovoltaic power generation prediction system and method |
-
2010
- 2010-10-13 EP EP10765621.7A patent/EP2628231B1/en active Active
- 2010-10-13 US US13/879,450 patent/US20130204451A1/en not_active Abandoned
- 2010-10-13 CN CN201080069535.4A patent/CN103155336B/en not_active Expired - Fee Related
- 2010-10-13 WO PCT/EP2010/065302 patent/WO2012048736A1/en active Application Filing
- 2010-10-13 BR BR112013008629A patent/BR112013008629B1/en active IP Right Grant
- 2010-10-13 ES ES10765621.7T patent/ES2634432T3/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| BR112013008629A8 (en) | 2017-10-17 |
| CN103155336B (en) | 2016-03-02 |
| WO2012048736A1 (en) | 2012-04-19 |
| US20130204451A1 (en) | 2013-08-08 |
| BR112013008629B1 (en) | 2019-12-31 |
| CN103155336A (en) | 2013-06-12 |
| BR112013008629A2 (en) | 2016-06-21 |
| EP2628231A1 (en) | 2013-08-21 |
| EP2628231B1 (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2634432T3 (en) | Controller of a power supply network | |
| Haughton et al. | A linear state estimation formulation for smart distribution systems | |
| ES2881531T3 (en) | Methods and systems to control a power conversion system | |
| JP6972143B2 (en) | Distributed power system | |
| JP6249895B2 (en) | Power control system, method, and power control apparatus | |
| ES2829564T3 (en) | Determination of a characteristic of an inertial contribution to an electrical power network | |
| Heckenbergerová et al. | Dynamic thermal rating of power transmission lines related to wind energy integration | |
| BR122012018277A2 (en) | distribution system analysis using meter data | |
| CN108701994B (en) | System and method for dynamically determining maximum capacity for current transmission | |
| US20210108971A1 (en) | Systems and methods for measuring internal transformer temperatures | |
| JP2010213507A (en) | Natural energy integrated power storage system and natural energy integrated power storage method | |
| Carlini et al. | Uprating an overhead line. Italian TSO applications for integration of RES | |
| JP2019097308A (en) | Draw-in board and multiple dwelling house | |
| Erturk | Sizing a stand-alone off-grid wind turbine-battery power system for a remote house in Catalca Istanbul Turkey | |
| ES2962992T3 (en) | Procedure to determine the overload capacity of a high voltage device | |
| JP2020068645A (en) | Self-consumption type power generation control system and switchboard | |
| Ren et al. | Design and calculation method for dynamic increasing transmission line capacity | |
| EP2905863B1 (en) | Power distribution management device, voltage determination method, and voltage determination program | |
| CN106022627A (en) | Energy storage application value evaluation method and system based on data processing | |
| Zamora et al. | Evaluation of the impact of electric vehicles on distribution systems combining deterministic and probabilistic approaches | |
| Safitri et al. | Stochastic analysis results for coordination of single-phase rooftop PVs in unbalanced residential feeders | |
| CROSSLAND | Application of stochastic and evolutionary methods to plan for the installation of energy storage in voltage constrained LV networks | |
| JP2018164383A (en) | Power storage system | |
| Thomann et al. | Estimating the effect of domestic load and renewable supply variability on battery capacity requirements for decentralized microgrids | |
| Torres | Development and Modeling of a Low-voltage DC Distribution Nanogrid with Distributed Generation Systems |